Concrete reinforcement device

Abstract

A concrete reinforcement device includes a plurality of spaced vertical reinforcement rods 12, and tiers of horizontal connecting plates 10, 11 to space and interconnect the reinforcement rods 12, the connecting plates in each tier having a peripheral edge provided with spaced apart notches 15 which are engaged with the vertical reinforcement rods 12 respectively and connected firmly therewith by welding, the connecting plates 10, 11 in each tier confining a hole for the passage of concrete.

What is claimed is: 
     
       1. A device for reinforcing a concrete construction comprising a plurality of spaced vertical reinforcement rods, and tiers of horizontal connecting plate means to space and interconnect the reinforcement rods, each of said connecting plate means having a peripheral edge provided with spaced notches which are engaged with said vertical reinforcement rods respectively and connected firmly thereto by welding means, each of said connecting plate means having a hole for the passage of concrete. 
     
     
       2. A device for reinforcing a concrete construction as claimed in claim 1, further comprising a cover plate extending transversely relative to said vertical reinforcement rods and having one side contacted with parts of said vertical reinforcement rods, said cover plate being removably attached to said vertical reinforcement rods and covering parts of said vertical reinforcement rods which are then exposed after the formation of the concrete construction. 
     
     
       3. A device for reinforcing a concrete construction as claimed in claim 1, further comprising transverse rods to be welded to the exposed parts of said vertical reinforcement rods. 
     
     
       4. A device for reinforcing a concrete construction as claimed in claim 1, further comprising transverse steel plates provided around parts of said vertical reinforcement rods, each having one side welded to said vertical reinforcement rods, each of said steel plates having openings in alignment with said openings of another opposite one of said steel plates, and tube members extending between said steel plates and each having two ends fitted in said aligned openings of said steel plates. 
     
     
       5. A device for reinforcing a concrete construction as claimed in claim 1, wherein said connecting plate means in each tier includes a plurality of interconnected plates.